2 kW average power from a pulsed Yb-doped rod-type fiber amplifier

This Letter reports on a fiber-laser system that, employing a 1 m long rod-type photonic-crystal fiber as its main-amplifier, emits a record average output power of 2 kW, by amplifying stretched ps-pulses. A further increase of the output power was only limited by the available laser-diode pump powe...

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Veröffentlicht in:Optics letters 2014-11, Vol.39 (22), p.6446-6449
Hauptverfasser: Otto, Hans-Jürgen, Stutzki, Fabian, Modsching, Norbert, Jauregui, Cesar, Limpert, Jens, Tünnermann, Andreas
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container_issue 22
container_start_page 6446
container_title Optics letters
container_volume 39
creator Otto, Hans-Jürgen
Stutzki, Fabian
Modsching, Norbert
Jauregui, Cesar
Limpert, Jens
Tünnermann, Andreas
description This Letter reports on a fiber-laser system that, employing a 1 m long rod-type photonic-crystal fiber as its main-amplifier, emits a record average output power of 2 kW, by amplifying stretched ps-pulses. A further increase of the output power was only limited by the available laser-diode pump power. The energy of the pulses is 100 μJ, corresponding to MW-level peak powers extracted directly from the fiber of the main amplifier. The corresponding M2 at the maximum output power is
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